US11638682B2 - Hair cosmetic - Google Patents

Hair cosmetic Download PDF

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US11638682B2
US11638682B2 US15/743,528 US201615743528A US11638682B2 US 11638682 B2 US11638682 B2 US 11638682B2 US 201615743528 A US201615743528 A US 201615743528A US 11638682 B2 US11638682 B2 US 11638682B2
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ingredient
cosmetic composition
mass
hair cosmetic
hair
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US20180200169A1 (en
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Tomoki Morioka
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Kao Corp
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/41—Amines
    • A61K8/416—Quaternary ammonium compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/31—Hydrocarbons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/342—Alcohols having more than seven atoms in an unbroken chain
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/345—Alcohols containing more than one hydroxy group
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/36—Carboxylic acids; Salts or anhydrides thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/36—Carboxylic acids; Salts or anhydrides thereof
    • A61K8/365—Hydroxycarboxylic acids; Ketocarboxylic acids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37—Esters of carboxylic acids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/42—Amides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/58—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing atoms other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur or phosphorus
    • A61K8/585—Organosilicon compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/89—Polysiloxanes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/89—Polysiloxanes
    • A61K8/896—Polysiloxanes containing atoms other than silicon, carbon, oxygen and hydrogen, e.g. dimethicone copolyol phosphate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
    • A61K8/922—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
    • A61K8/97—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
    • A61K8/9783—Angiosperms [Magnoliophyta]
    • A61K8/9789—Magnoliopsida [dicotyledons]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
    • A61K8/97—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
    • A61K8/9783—Angiosperms [Magnoliophyta]
    • A61K8/9794—Liliopsida [monocotyledons]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/12—Preparations containing hair conditioners

Definitions

  • the present invention relates to a rinse-off-type hair cosmetic composition which is applied to hair and washed away.
  • a rinse-off-type hair cosmetic composition which is used after shampooing and is washed away such as hair rinses and hair conditioners, contain a cationic surfactant and a fatty alcohol as major components and are intended to condition the surface of the hair by giving smoothness or moist feeling to the hair.
  • Patent Documents 1 to 4 disclose hair conditioners or the like containing a cationic surfactant, a fatty alcohol, a silicone, or the like.
  • Patent Document 1 JP-A-2000-143459
  • Patent Document 2 JP-A-11-286415
  • Patent Document 3 JP-A-2002-536314
  • Patent Document 4 JP-A-2006-265205
  • the present invention provides a rinse-off-type hair cosmetic composition used by being applied to hair and then washed away, the rinse-off-type hair cosmetic composition comprising: the ingredients (A) to (C) below, and water, wherein a molar ratio of the ingredient (B) to the ingredient (A), (B)/(A), is less than 3, and a mass ratio of the ingredient (C) to the ingredient (A), (C)/(A), is less than 1:
  • R 1 represents a linear or branched alkyl group or alkenyl group having 11 to 17 carbon atoms
  • R 2 represents a linear or branched alkylene group having 2 to 4 carbon atoms
  • R 3 , R 4 , and R 5 independently represent a linear or branched alkyl group, alkenyl group, or hydroxyalkyl group having 1 to 3 carbon atoms
  • X ⁇ represents an anion
  • FIG. 1 is a view illustrating an apparatus used for evaluating the ease of hair's separating each other in Examples.
  • hair damage is getting serious which is caused by hair setting or the like using heat such as a hair iron and a dryer, which is habitualized mainly in young women, in addition to chemical treatment such as a hair color and a perm.
  • the hair damage is known to involve the loss of 18-MEA (18-methyl eicosanoic acid), which is a fatty acid covering the hair surface, to thereby cause hydrophilization of the hair surface and an increase in surface friction.
  • 18-MEA 18-methyl eicosanoic acid
  • the damaged and thus hydrophilized hair not only lose smoothness but also become difficult to get dry after shampooing, so that blow-drying or the like requires a long time, which causes a physical burden. Further, wet and damaged hair is easily entangled, and hooking which occurs during the blow-drying causes further accumulation of damage and a psychological burden of the consumer.
  • Patent Documents 1 to 3 do not have any effects of improving the drying speed of the hair after shampooing, and there is neither description nor suggestion on the drying speed in these Documents.
  • Patent Document 4 discloses that the hair conditioning composition disclosed therein provides excellent drying speed after application to dry hair and can give a smooth feeling and softness to the hair.
  • the hair conditioning composition specifically disclosed therein is only the leave-on-type which is not washed away, and the effect of “rapid drying after application” in the disclosure means rapid drying of the hair conditioning composition itself. Accordingly, this Document includes no suggestion on the drying speed of hair after using a rinse-off-type hair cosmetic composition which itself is washed away after application to the hair.
  • the present invention relates to a rinse-off-type hair cosmetic composition which is applied to the hair after shampooing and then washed away and enables the wet hair to dry within a short time.
  • “ease of separating hair” is important. Specifically, when the hair are dried with a towel, separating the hair allows the contact area of hair with the towel to increases, so that the moisture of the hair is rapidly absorbed in the towel, and also during blow-drying (also in air drying), separating the hair allows the contact area of hair with air to increases, so that the moisture of the hair rapidly evaporates.
  • a cationic surfactant and a fatty alcohol form a stable ⁇ -gel, and therefore a silicone contained together with these ingredients remain unevenly on the surface of the hair after being washed with water and exhibit adherence to cause inhibition of the separating.
  • the inventor has found that the ease of separating hair can be improved by employing an amide cationic surfactant having high hydrophilicity as the cationic surfactant in the rinse-off-type of hair cosmetic composition which is used after shampooing and is washed away, and adjusting a compounding ratio between it and a fatty alcohol to fall within a certain range. Further, the inventor has found that, when the compounding ratio between the amido-cationic surfactant and a silicone is adjusted to fall within a certain range, the silicone remaining on the hair surface after washing with water forms a uniform adsorption membrane with no stickiness and high water repellency to thereby promote the separating of hair, so that the drying speed of the hair is dramatically improved.
  • R 1 in formula (1) is preferably a linear or branched alkyl group or alkenyl group having 13 to 17 carbon atoms, further preferably having 15 to 17 carbon atoms.
  • R 2 is preferably an ethylene group or a trimethylene group.
  • R 3 , R 4 , and R 5 are preferably independently a methyl group, an ethyl group, a hydroxyethyl group, or a hydroxypropyl group, more preferably a methyl group or an ethyl group, further preferably a methyl group.
  • Examples of the anion represented by X ⁇ include halide ions such as Cl ⁇ and Br ⁇ , alkyl sulfate ions having 1 to 5 carbon atoms (such as CH 3 SO 4 ⁇ , C 2 H 5 SO 4 ⁇ , and C 3 H 7 SO 4 ⁇ ), and alkyl carbonate ions (CH 3 CO 3 ⁇ ).
  • Cl ⁇ , Br ⁇ , CH 3 SO 4 ⁇ , C 2 H 5 SO 4 ⁇ , and CH 3 CO 3 ⁇ are preferable, and Cl ⁇ and Br ⁇ are further preferable.
  • amido-cationic surfactant which serves as the ingredient (A) include the compound below:
  • the amido-cationic surfactant which serves as the ingredient (A) is obtained by obtaining alkyl amidoamine through a reaction of a fatty acid, a fatty acid lower alkyl ester, or a fatty acid derivative such as oils and fats with N,N-dialkylamine, and quaternizing the alkyl amidoamine with a quaternizing agent such as an alkyl halide.
  • the reaction temperature is preferably 40 to 200° C., further preferably 50 to 180° C.
  • the reaction can be performed more efficiently within a short time by use of an acid catalyst such as sulfuric acid and p-toluenesulfonic acid in the case of the fatty acid or use of an alkali catalyst such as sodium methylate in the case of the fatty acid derivative.
  • the amido-cationic surfactant which serves as the ingredient (A) can be used alone, or two or more thereof may be used in combination.
  • the content of the ingredient (A) in the hair cosmetic composition of the present invention is preferably 0.1 mass % or more, more preferably 1 mass % or more, further preferably 2 mass % or more, and in view of the spreadability in application, it is preferably 10 mass % or less, more preferably 7 mass % or less, further preferably 6 mass % or less, further preferably 5 mass % or less.
  • fatty alcohol having 14 to 18 carbon atoms which serves as the ingredient (B) either a saturated fatty alcohol or an unsaturated fatty alcohol can be used. Specific examples thereof include myristyl alcohol, cetyl alcohol, stearyl alcohol, and oleyl alcohol, and cetyl alcohol and stearyl alcohol are particularly preferable. These can be used alone, or two or more of them can be used in combination.
  • the molar ratio of the ingredient (B) to the ingredient (A), (B)/(A), in the hair cosmetic composition of the present invention is less than 3, preferably 2.9 or less, more preferably 2.8 or less, further preferably 2.7 or less, and in view of the stability of the system and the smoothness in application, it is preferably 2 or more, more preferably 2.2 or more, further preferably 2.4 or more.
  • a specific content of the ingredient (B) in the hair cosmetic composition of the present invention is preferably 0.5 mass % or more, more preferably 1 mass % or more, further preferably 3 mass % or more, further preferably 4 mass % or more, further preferably 5 mass % or more, and in view of the spreadability in application, it is preferably 15 mass % or less, more preferably 10 mass % or less, further preferably 8 mass % or less.
  • silicone which serves as the ingredient (C) examples include dimethyl polysiloxane, cyclic silicone, amino-modified silicone, dimethiconol, polyether-modified silicone, polyglycidol-modified silicone, methylphenyl polysiloxane, fatty acid-modified silicone, alcohol-modified silicone, alkoxy-modified silicone, epoxy-modified silicone, fluorine-modified silicone, and alkyl-modified silicone, and in view of the ease of separating hair and the rapid drying of wet hair, dimethyl polysiloxane and amino-modified silicone are preferable.
  • the weight-average molecular weight of the silicone which serves as the ingredient (C) is preferably 200,000 or less, more preferably 180,000 or less, further preferably 100,000 or less, further preferably 70,000 or less. Further, in view of the smooth hair, the molecular weight of the silicone which serves as the ingredient (C) is preferably 236 or more, more preferably 450 or more.
  • the mass ratio of the ingredient (C) to the ingredient (A), (C)/(A), in the hair cosmetic composition of the present invention is less than 1, preferably 0.8 or less, more preferably 0.5 or less, and for separating hair, enhancing the water-repellent effect on the hair surface, rapidly drying wet hair, and achieving smoothness in application, it is preferably 0.01 or more, more preferably 0.1 or more, further preferably 0.2 or more.
  • a specific content of the ingredient (C) in the hair cosmetic composition of the present invention is preferably 0.1 mass % or more, more preferably 0.3 mass % or more, further preferably 0.5 mass % or more, and in view of the ease of separating hair, it is preferably 10 mass % or less, more preferably 5 mass % or less, further preferably 3 mass % or less, further preferably 2 mass % or less.
  • the hair cosmetic composition of the present invention can further contain a monovalent to trivalent fatty alcohol having 1 to 6 carbon atoms or aromatic alcohol having 7 to 10 carbon atoms as the ingredient (D).
  • a monovalent to trivalent fatty alcohol having 1 to 6 carbon atoms or aromatic alcohol having 7 to 10 carbon atoms as the ingredient (D).
  • examples of such alcohol include isopropyl alcohol, butanediol, propylene glycol, dipropylene glycol, benzyl alcohol, benzyloxyethanol, and phenoxyethanol.
  • the content of the ingredient (D) in the hair cosmetic composition of the present invention is preferably 0.01 mass % or more, more preferably 0.05 mass % or more, further preferably 0.1 mass % or more, further preferably 0.5 mass % or more, and for eliminating stickiness, it is preferably 10 mass % or less, more preferably 5 mass % or less, further preferably 3 mass % or less.
  • the hair cosmetic composition of the present invention can further contain an organic acid having 8 or less carbon atoms as the ingredient (E).
  • the organic acid having 8 or less carbon atoms include monocarboxylic acid, dicarboxylic acid, and tricarboxylic acid, and may include hydroxycarboxylic acid.
  • the monocarboxylic acid include acetic acid, lactic acid, and glycolic acid
  • examples of the dicarboxylic acid include malonic acid, succinic acid, glutaric acid, adipic acid, maleic acid, fumaric acid, phthalic acid, oxalic acid, malic acid, and tartaric acid
  • examples of the tricarboxylic acid include citric acid.
  • examples of the hydroxycarboxylic acid include glycolic acid, lactic acid, malic acid, tartaric acid, and citric acid. Among them, lactic acid, citric acid, malic acid, and glycolic acid are preferable.
  • the content of the ingredient (E) in the hair cosmetic composition of the present invention is preferably 0.01 mass % or more, more preferably 0.05 mass % or more, further preferably 0.1 mass % or more, and is preferably 5 mass % or less, more preferably 3 mass % or less, further preferably 1 mass % or less.
  • the hair cosmetic composition of the present invention can further contain a liquid oil agent as the ingredient (F).
  • a liquid oil agent examples include hydrocarbons such as liquid paraffin, isoparaffin, and polybutene; ester oils such as isopropyl palmitate; and vegetable oils such as jojoba oil and olive oil.
  • the viscosity (25° C.) of the liquid oil agent is preferably 1 mPa ⁇ s or more and it is also preferably 100 mPa ⁇ s or less.
  • the viscosity herein is measured at 25° C., using a B-type rotational viscometer (model: digital viscometer TV-10, manufactured by TOKI SANGYO CO., LTD.) and a rotor No. 1, at a rotational speed of 60 rpm.
  • the content of the ingredient (F) in the hair cosmetic composition of the present invention is preferably 0.01 mass % or more, more preferably 0.05 mass % or more, further preferably 0.1 mass % or more, and for enhancing the ease of separating hair, it is preferably 10 mass % or less, more preferably 5 mass % or less, further preferably 4 mass % or less, further preferably 3 mass % or less, further preferably 2 mass % or less.
  • the hair cosmetic composition of the present invention contains water as a medium.
  • the water accounts for the balance other than the ingredients (A) to (C) and other ingredients.
  • the hair cosmetic composition of the present invention can further contain other ingredients which are generally used for hair cosmetic compositions, depending on the purpose.
  • examples thereof include polymer compounds such as cationized cellulose, hydroxylated cellulose, and highly polymerized polyethylene oxide; non-ionic surfactants such as polyoxyethylene alkyl ether, polyoxyethylene sorbitan fatty acid ester, glycerol mono fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene hardened castor oil, sucrose fatty acid ester, polyglycerin alkyl ether, fatty acid alkanolamide, and alkyl glycoside; waxes such as beeswax, spermaceti, lanolin, and carnaubawax; higher fatty acids such as capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, coconut oil fatty acid, isostearic acid, and isopalmitic acid; oil
  • the pH of the hair cosmetic composition of the present invention is preferably 2.5 or more, further preferably 3.0 or more, and is preferably 6.0 or less, further preferably 5.5 or less, further preferably 5.0 or less.
  • the pH of the hair cosmetic composition is a value at 25° C. when the hair cosmetic composition is diluted with water to 20 fold by mass.
  • the rinse-off-type hair cosmetic composition of the present invention is used by being applied to hair and then washed away, and examples thereof include hair cosmetic compositions which are used in bathrooms such as hair rinses, hair conditioners, hair treatments, and hair packs.
  • the hair cosmetic composition of the present invention may be applied to hair after shampooing and then washed away with water.
  • the tress is separated easily during drying with towel after rinsing, and wet hair can be dried in a short time.
  • a rinse-off-type hair cosmetic composition used by being applied to hair and then washed away comprising: the ingredients (A) to (C) below, and water, wherein a molar ratio of the ingredient (B) to the ingredient (A), (B)/(A), is less than 3, and a mass ratio of the ingredient (C) to the ingredient (A), (C)/(A), is less than 1:
  • R 1 represents a linear or branched alkyl group or alkenyl group having 11 to 17 carbon atoms
  • R 2 represents a linear or branched alkylene group having 2 to 4 carbon atoms
  • R 3 , R 4 , and R 5 independently represent a linear or branched alkyl group, alkenyl group, or hydroxyalkyl group having 1 to 3 carbon atoms
  • R 1 in formula (1) is a linear or branched alkyl group or alkenyl group preferably having 13 to 17 carbon atoms, more preferably having 15 to 17 carbon atoms.
  • R 1 , R 4 , and R 5 in formula (1) are independently preferably a methyl group, an ethyl group, a hydroxyethyl group, or a hydroxypropyl group, more preferably a methyl group or an ethyl group, further preferably a methyl group.
  • a content of the ingredient (A) is preferably 0.1 mass % or more, more preferably 1 mass % or more, further preferably 2 mass % or more, and is preferably 10 mass % or less, more preferably 7 mass % or less, further preferably 6 mass % or less, further preferably 5 mass % or less.
  • ⁇ 6> The hair cosmetic composition according to any one of ⁇ 1> to ⁇ 5>, wherein the ingredient (B) is preferably one or more selected from the group consisting of myristyl alcohol, cetyl alcohol, stearyl alcohol, and oleyl alcohol, more preferably one or two selected from the group consisting of cetyl alcohol and stearyl alcohol.
  • the ingredient (B) is preferably one or more selected from the group consisting of myristyl alcohol, cetyl alcohol, stearyl alcohol, and oleyl alcohol, more preferably one or two selected from the group consisting of cetyl alcohol and stearyl alcohol.
  • a content of the ingredient (B) is preferably 0.5 mass % or more, more preferably 1 mass % or more, further preferably 3 masse or more, further preferably 4 mass % or more, further preferably 5 mass % or more, and is preferably 15 mass % or less, more preferably 10 mass % or less, further preferably 8 mass % or less.
  • a molar ratio of the ingredient (B) to the ingredient (A), (B)/(A), is preferably 2.9 or less, more preferably 2.8 or less, further preferably 2.7 or less, and is preferably 2 or more, more preferably 2.2 or more, further preferably 2.4 or more.
  • the ingredient (C) is preferably one or more selected from the group consisting of dimethyl polysiloxane, cyclic silicone, amino-modified silicone, dimethiconol, polyether-modified silicone, polyglycidol-modified silicone, methylphenyl polysiloxane, fatty acid-modified silicone, alcohol
  • a weight-average molecular weight of the silicone which serves as the ingredient (C) is preferably 200,000 or less, more preferably 180,000 or less, further preferably 106,000 or less, further preferably 70,000 or less, and a molecular weight of the silicone which serves as the ingredient (C) is preferably 236 or more, more preferably 450 or more.
  • a content of the ingredient (C) is preferably 0.1 mass % or more, more preferably 0.3 mass % or more, further preferably 0.5 mass % or more, and is preferably 10 mass % or less, more preferably 5 mass % or less, further preferably 3 mass % or less, further preferably 2 mass % or less.
  • ⁇ 12> The hair cosmetic composition according to any one of ⁇ 1> to ⁇ 11>, wherein a mass ratio of the ingredient (C) to the ingredient (A), (C)/(A), is preferably 0.8 or less, more preferably 0.5 or less, and is preferably 0.01 or more, more preferably 0.1 or more, further preferably 0.2 or more.
  • a mass ratio of the ingredient (C) to the ingredient (A), (C)/(A) is preferably 0.8 or less, more preferably 0.5 or less, and is preferably 0.01 or more, more preferably 0.1 or more, further preferably 0.2 or more.
  • D the ingredient
  • a content of the ingredient (D) is preferably 0.01 mass % or more, more preferably 0.05 mass % or more, further preferably 0.1 mass % or more, further preferably 0.5 mass % or more, and is preferably 10 mass % or less, more preferably 5 masse or less, further preferably 3 mass % or less.
  • a content of the ingredient (E) is preferably 0.01 mass % or more, more preferably 0.05 mass % or more, further preferably 0.1 mass % or more, and is preferably 5 mass % or less, more preferably 3 mass % or less, further preferably 1 mass % or less.
  • a content of the ingredient (E) is preferably 0.01 mass % or more, more preferably 0.05 mass % or more, further preferably 0.1 mass % or more, and is preferably 5 mass % or less, more preferably 3 mass % or less, further preferably 1 mass % or less.
  • a viscosity (25° C.) of the ingredient (F) is preferably 100 mPa ⁇ s or less.
  • ⁇ 22> The hair cosmetic composition according to any one of ⁇ 19> to ⁇ 21>, wherein a viscosity (25° C.) of the ingredient (F) is preferably 1 mPa ⁇ s or more.
  • a content of the ingredient (F) is preferably 0.01 mass % or more, more preferably 0.05 mass % or more, further preferably 0.1 mass % or more, and is preferably 10 mass % or less, more preferably 5 mass % or less, further preferably 4 mass % or less, further preferably 3 mass % or less, further preferably 2 mass % or less.
  • a method for using a rinse-off-type hair cosmetic composition comprising applying the hair cosmetic composition according to any one of ⁇ 1> to ⁇ 24> to hair, and washing away the hair cosmetic composition with water.
  • Hair conditioners shown in Tables 1 and 2 were prepared and were evaluated according to the following methods and criteria.
  • a tress (the entire width: 8 mm) was formed by making two Japanese untreated hair with a length of 7 cm into one set and aligning 5 sets at intervals of about 2 mm.
  • This tress was bleached using hair bleaching agents (“GOLDWELL BLEACH” and “TOPCHIC LOTION 6%” manufactured by GOLDWELL).
  • the hair bleaching was performed by applying the hair bleaching agents in an amount (mass) equal to the hair and rinsing them after hair bleaching at room temperature for 20 minutes.
  • the tress washed using a plain shampoo shown below and rinsed twice, followed by drying, was used as an evaluation tress.
  • the thus dried evaluation tress was immersed in 50 mL of tap water for 30 seconds and thereafter was immersed in 50 mL of a solution of each of the hair conditioners shown in Tables 1 and 2, which was diluted to 10 fold by mass, for 15 seconds, followed by immersion in 200 mL of tap water for 1 minute again and rinsing.
  • the evaluation was performed using the apparatus shown in FIG. 1 .
  • EH5406, manufactured by Panasonic Corporation was used as the dryer, and the settings were Hot (hot air) and set (weak wind).
  • the tress after the aforementioned process was set at a distance of 7 cm from the wall and 16 cm from the floor to the tress root, and the heat and airflow which hit the tress were adjusted by directing the hot air of the dryer to the x mark located directly below the tress so as not to directly hit the tress and blowing the air at a distance of 34 cm from the x mark at an angle of 45° with respect to the vertical direction.
  • a tress formed by transplanting 30-cm healthy straight blonde Caucasian hair at a graft angle of 60° with a density of 200 strands/cm 2 in a 6 cm ⁇ 6 cm square area and three roots per hole was used for evaluating the rapid drying properties.
  • the mass of the tress in a dry state was preliminary measured. This tress was washed using the aforementioned plain shampoo and rinsed twice, and 2 g of each hair conditioner shown in Tables 1 and 2 was applied thereto, followed by rinsing with tap water. After the rinsing, the tress was adjusted so as to have a moisture content of 6 g and was placed on a paper towel (BLLEAIR PROWIPE, manufactured by DAIO PAPER CORPORATION), and further, the same paper towel, an acrylic plate, and a weight (where the total weight of the acrylic plate and the weight was 1.4 kg) were sequentially put further thereon, which were allowed to stand for 20 seconds to remove excess moisture.
  • a paper towel (BLLEAIR PROWIPE, manufactured by DAIO PAPER CORPORATION)
  • a shaker (SHK-COCK2, manufactured by Scinics Corporation) was fixed with its dial side (switch) facing downward, and the tress was set therein with the hair tips facing downward and was shaken for 30 seconds (where the shaking speed was set to 170 head swings/minute, and the oscillation width was 3 cm).

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JP2017019780A (ja) 2017-01-26
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EP3320891A4 (fr) 2019-01-23
EP3320891A1 (fr) 2018-05-16

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